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How to model type-safe enum types?
...urns an Iterator, map, flatMap, filter, etc.
This answer is essentially a selected parts from this article in my blog.
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AddBusinessDays and GetBusinessDays
...using negative numbers with AddBusinessDays allows non-business days to be selected.
– Ristogod
May 28 '14 at 17:37
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sed: print only matching group
... -d " " -f 6-7
Will result in output of:
2 3.4
-d sets the delimiter
-f selects the range of 'fields' to output, in this case, it's the 6th through 7th chunks of the original string. You can also specify the range as a list, such as 6,7.
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What is the difference between pluck and collect in Rails?
...ds with Rails 4, still use pluck
if you need some fields with Rails 3, use selectand collect
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Does JavaScript guarantee object property order?
...ruenbaum Your comment is false. In ES2015 the order is guaranteed only for selected methods. See answer of ftor below.
– Piotr Dobrogost
Oct 7 '16 at 15:34
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How do you reverse a string in place in C or C++?
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@fredsbend, the "ridiculously long" version of the selected answer handles a case which this simple answer doesn't - UTF-8 input. It shows the importance of fully specifying the problem. Besides the question was about code that would work in C as well.
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Reverse engineering from an APK file to a project
...APK feature from Android studio 2.2 version
Build -> Analyze APK -> Select your APK -> it give results
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Delete a line in Eclipse
...Visual Studio, you would use Ctrl + L , whereas in Eclipse I am forced to select a line or, if it is empty, go the beginning of the line before clicking delete/backspace.
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Negative matching using grep (match lines that do not contain foo)
...s your friend:
grep --help | grep invert
-v, --invert-match select non-matching lines
Also check out the related -L (the complement of -l).
-L, --files-without-match only print FILE names containing no match
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Clear MySQL query cache without restarting server
...not clear it for me. Also, MySQL server restart does not help. An explicit SELECT SQL_NO_CACHE does the trick, but not RESET QUERY CACHE. sync && echo 3 | sudo tee /proc/sys/vm/drop_caches from the other answer didn't help, too.
– Jānis Elmeris
Aug 24 ...